Technical inspection with the Tesla

Cars have to go to the technical inspection every second year in Switzerland. New ones are exempt from this for the first five years. Now that my Model S is closing in on becoming six years old next month, I got the invitation to bring it in for inspection. Usually with my old ICE cars, I would visit the mechanic beforehand to bring everything in order and to wash the engine. The Tesla has no dirty engine to wash, and was in service last July. So I completely skipped the preparation part.
As usual, the expert performed a short test drive with hard braking. Then followed the indoor inspection. Testing brakes, suspension and lights was as usual. But that was it already. He admitted that he didn’t have much training for Teslas. His manual seemed to indicate that the parking brake was mechanical, while I am convinced it is electronically activated. So he tried to spot the cable. But we were unable to figure out which way it was, because everything is so well hidden behind covers. He said that the lower part of the car looked like from formula one, and wanted to know what material the shield of the battery was made of. He did not have a single complaint, and was done in less than 15 minutes. Wow, I never had a car before that was through the inspection so quickly.

So now is a good time to do some recap. I had the car now for three months short of three years. During this time, I did the following to it:
* Added 95’000 km to the odometer (essentially doubled it)
* Charged 19’208 kWh
* Paid CHF 2’082.5 for electricity
* Paid CHF 63.5 for parking that was only necessary for charging
* Bought three sets of new tires, that I paid all with Bitcoin

Here is some statistic about where I charge:

* 65% at home (typ2 16kWh)
* 15% superchargers
* 13% typ2 22kWh. Probably the lions share of this is the public charger near my in-law’s place, but it also includes Tesla destination chargers and most public chargers in general.
* 2% Chademo (50 kW) and CCS (150 kW)

Given that only 2% was Chademo and CCS together it seems silly that I bought both adapters that cost together close to CHF 1’000. But it was mainly about peace of mind, being sure I can charge everywhere. During holiday trips each one of them proved invaluable. Even if I have an insurance that covers the cost for towing, it would be very inconvenient to get stranded, especially far away from home.

I had a couple of repairs:
* Two xenon headlight bulbs replaced
* One 12V battery replaced
* One door handle replaced with newer version (known problem with the cable to the micro switches in the first revision)
* Tire pressure monitor system replaced with newer version.
* Front brake disks and pads replaced. Was damaged from under usage due to recuperation.
* One electric motor replaced under warranty. It worked still fine, but it was not completely silent any more.
* Replaced all lug nuts, because somebody damaged them using a wrong tool when changing tires.

In total, I paid something more than CHF 4’000 for all the repairs.

Driving around the adriatic sea

This years summer holiday we spent in Korfu, Greece. At first we talked about Croatia, when somebody came up with the idea to go farther south to Greece.
Lets begin with the important facts. This time not as accurate as for the trip to Norway, since I deactivated app access a while ago, which allowed to automatically collect all the data in the past.
Duration: 13 days
Distance covered: 4’100 km
Electricity charged: 850 kWh
Waiting time for charges: 3 hours
Cost for charges: EUR 34 + tips
Our route on a map
All hotels except the holiday house on Corfu booked with CheapAir and paid with Bitcoin
Like the last few years, a key criteria was that we didn’t want to spew big amounts of CO2 and accompanying toxic gasses into the atmosphere. Thus we went again with our electric car. On the way to Corfu I drove the Balcan route. To make the trip home shorter, we took a fairy to Italy. Not only are the roads better in Italy, but also the charging infrastructure is more developed.
It was going to be the first time for us leaving the comfort of the Superchargers. There are some stations planned for the lower Balcan, but no dates are provided yet.
As you can see when comparing the above numbers to the trip to Norway, this time we had some waiting times for charging the car. It had a couple of reasons as you will see when reading through. In general, when I write about a short stop at a Supercharger, that is for coffee or ice cream and toilet. A longer stop at a Supercharger usually means lunch or dinner. These types of breaks don’t count towards the “waiting time for charges” as there is no waiting involved. With waiting times I mean times that were not necessary if it was not for charging. Not all of the waiting was strictly necessary to reach the next destination. But in countries without established charging infrastructure, I always wanted to have some reserve in the battery. You never know if the next planned charge really works out. This is in stark contrast to the normal use of Superchargers, which always work reliably in my experience. With everything else, there is always some risk involved. Thus on our trip I always had a plan B and a plan C.
I love electric road trips, but unfortunately not everybody in the family does. The compromise was to spend a full week stationary in a holiday house on Corfu island. The road trip through the Balcan was a mere means to get there. My wive wanted to have all the hotels on the way booked in advance. The one time we had difficulty finding accommodation in Norway was too stressful for her.

day 1: Driving to Croatia

We started very early in the morning, hoping to reach our destination in the early afternoon. We made it around Milano before the morning rush hour, and our first stop was at the Supercharger in Brescia. We were so early, the shopping mall next to it was still closed. Thus our plan of having breakfast there didn’t play out. So we had some breakfast from our food reserves in the Tesla lounge. We made a short (coffee and toilet) stop at the Supercharger next to Venice. The next stop was already at the Supercharger in Slowenia. Again, our plan of having lunch there didn’t play out, because there was no restaurant nearby, only a gas station shop. So, we drove to a restaurant with a destination charger that was close to our route. It turned out to be a very nice restaurant. The food was delicious, and the view over the sea marvelous. Now the battery had more than enough energy to reach the Plitvice Holiday Resort. We didn’t know that for the tiny strip of highway in Slowenia we were supposed to buy a vignette. And promptly two policemen imposed a EUR 150 fine on us. Yes, the Swiss police also hands out fines to tourists who drive on the highway without a vignette, but the signs are hard to miss upon entering Switzerland. While we didn’t see anything when entering Slowenia. Avoiding the highway would probably not even have been a time penalty, if I knew about this. On the way to Grabovac, the navigation system took us through single lane back country roads. Once even on a dirt road which turned out to be an error. I booked a tree house for the night, and it was the absolute highlight for our boys. The resort has a pictogram for E.V. charging on the website, and when I asked, they told me that I don’t have to reserve a charging spot, and that it will be all fine. When we arrived, I realized that there was no special infrastructure for charging cars, instead I could connect to one of the power outlets, that are all over the camp ground. Because the fuse constantly blew, I had to dial down all the way to 7Amp (1.6kW).

day 2: Plitvice lakes

We spent all morning in the tree house and the resort. It was a dream come true for the boys. At the bottom of the tree house there was a trampoline atop of a small artificial river. The river ended in a small artificial lake that was surrounded by nice bungalows. In the afternoon, we visited the Plitvice Lakes. It is one of UNESCOs oldest national parks. The 16 lakes and numerous waterfalls are a must see! In the evening we drove to Zadar. I didn’t care to book an accommodation with charging, because the next Supercharger is so close. We visited the old town where the car charged on a free station while we had dinner.

day 3: Dubrovnik and driving to Montenegro

We made short stops at all the Superchargers we crossed: Zadar, Split and Gravorac. Then we topped up the Battery in the parking, while visiting the old town of Dubrovnik. We knew it must look cool, if they filmed part of “Game of Thrones” there. But it was almost like Venice, just without canals. After leaving Croatia, we drove through most of Montenegro while it was already dark. But at least we got to see some of its beauty in daylight and during dawn. Next time, I would plan more time for Montenegro. I didn’t know the country, and my wive was worried about the cleanliness, so I booked a better hotel than we would usually choose. The prices are generally cheaper in Montenegro, thus we got a gigantic suite with two bedrooms, two bathrooms and a big kitchen/living room in a spa hotel for the same price as we got a simple room or apartment in other places. After the last Supercharger was in Croatia, it was important that we can charge the car full over the night. Thus I booked only after making sure to get three phase power. The owner was very well prepared and helpful. I am also thankful to Benedikt who sent me an old Yugoslavian plug which is still common in Montenegro.

day 4: Driving through Albania

Before leaving Ulcinj, the boys took a swim in the hotel pool. Albania was the country where part of our family didn’t look forward to. It is really different to the other countries we visited. It has nice places, but you also see a lot of dirt and garbage lying around everywhere. Especially the suburbs of Tirana looked grim. This was close to the industrial area where we visited the Volkswagen importer which has a CCS charging station. My car got the CCS retrofit only weeks before our trip. CCS is normally used for high power fast charging of up to 150kW and potentially more in the future. So I was a little bit disappointed when I found out that this CCS station only delivers 22kW. At least the employees were very friendly and helpful. Unfortunately there was no good restaurant nearby, so we had our lunch again from our food reserves. Albania has highways that are free to use. But they are different from what we are used to. Every ten minutes or so, there is a crossing where it narrows to one lane and the speed is limited to 40km/h. And every time you slow down in concert with 10 other cars, there is one asshole who crosses all the double markings on the road and passes everyone else with 150km/h, risking fatalities if another car crossed the road. This sort of extreme reckless driving was present everywhere in Albania. I had to brake very hard multiple times to prevent frontal crashes on curvy roads where some idiot drove on the wrong lane in front of a curve with zero visibility. This really tainted my image of Albanians even though the people I had direct contact with, were really nice and friendly.
When I missed a fork, because the road looked like a dirt road and I thought there must be a better road ahead, we came to a nice beach and took a short break. After that, the navigation system told me to continue along the dirt road to the other end of the beach. To my astonishment, the road leading up to the main road was not paved, and in a very bad condition. I put the air suspension to “very high”, but still had to be very careful not to scratch the bottom of the car at the rocks. This was really at the border of what I want to put my car through. But after you drove a bad road for a while and think that it has to improve any moment, it is hard to turn around and go back.
We arrived at the Palazzine Hotel in Vlore in the late afternoon. Vlore is by far the nicest place in Albania that we saw. It has a long beach full of hotels and restaurants. It is relatively clean, not as clean as in western Europe, but cleaner than the rest of the country. For about the same price we got a nice suite again. Despite the reassurances when booking and a week before the trip, the receptionist didn’t know anything about car charging. But she called a house keeper and a cook. They were extremely helpful, and didn’t stop searching until they found a suitable three phase plug in the upper kitchen. With my 10 meter extension cord it was just enough to reach the charging port of the car. The hotel has a beautiful terrace about 20 meters above the sea. From there we witnessed a scenic sunset while having a delicious and surprisingly cheap dinner.

day 5: Reaching Corfu

Shortly after leaving Vlore, we drove up a mountain pass road. On the way up, the forest looked almost like home to us. But the way down on the other side had totally different vegetation. It was a lot drier and steeper, going straight to the sea. There was a paragliding spot, but we didn’t have time. From there we could already see Corfu in the distance. Even if the straight line distance was not a lot, driving the curvy roads along the coast all the way to Igoumenitsa took a long time. Because we didn’t wand to wait an hour for the fairy which goes to the south of Corfu, we took the one to the north which left earlier. Only on the boat we realized how much longer this detour would take. Nonetheless we arrived at our holiday house shortly before dawn.

A week in Corfu

We spent a week in Corfu, visiting different beaches, the highest mountain, a castle built for Sissi and the main city. I couldn’t fly my paragllider, because I drove to the wrong town which sounded so similar. But I took some basic lessons for kite surfing. The feel for the wing I gained from paragliding helped a lot. But standing up on the board was not so easy for me. At the premise we had access to a regular household plug for charging the car. Since our trips on the island were usually not that long, the slow charging speed was enough.

Fairy to Brindisi

For the trip back home we took a fairy to Italy. This reduced our travel time considerably. I was told to be one hour before departure at the port, where I would get the real ticket in exchange for the voucher. At the entrance of the harbor, we asked where we would get that ticket, and they sent us back into the city. After some more misinformation, we barely made it onto the ship in time. I took the shortest fairy route because I wanted to produce the least amount of CO2. But we were still disgusted to see the dirty air exiting the exhaust of the fairy boat. My wive didn’t want to sleep on the boat, so we spent an extended afternoon looking at the calm sea, and trying to find food on a boat with only closed restaurants. Arriving in Brindisi, we drove until our hotel near Pescara with a dinner stop at the Cerignola Supercharger.

Back home

Like the first day, the last one of our holiday was a very long one with a lot of driving and traffic jams. We charged at the following Superchargers: Pescara, Fano, Modena, Melide. This time eating while charging worked out again as it usually does. When we approached Altdorf in the middle of the night, we discovered that the Axenstrasse is closed, and we thus had to drive all around lake Lucerne, adding yet another hour.

Navigation

I was curious about where the car would have internet connectivity, and how far the offline maps of the navigation system would reach. My guess was that connectivity would only be available in countries where Tesla has Superchargers, namely only as far as Croatia. I was almost correct. Luckily for us the car had connectivity also in Greece. In Montenegro and Albania the car had no Internet, leaving us with only the offline maps and without traffic information nor music streaming. No big deal, really. If it were not for a little problem we discovered when driving through Montenegro in the dark. As soon as the screen switched to night mode after the sun went down, the offline maps didn’t display any information other than the current route. At least it correctly recalculated the route when I missed a fork. A bit more context would be helpful, though.

Energy consumption vs time saving

There is a construction site at the feeway exit for my work place. Because of that, it takes about ten minutes more to commute. That triggered me to drive along the other site of lake Zug. It is the shorter route. But since it is a small road that goes through all the villages, it usually takes about ten minutes longer. What is more interesting, is the energy consumption.
On the freeway route the car usually consumes between 15 and 23 kWh per daily commute. The actual value depends mainly on temperature and weather conditions. The highest consumption values are with freezing temperatures and snow storms. This results in bad aero-dynamics and high rolling resistance combined with energy used for heating the cabin.
On the alternative route the car only consumed about 11kWh the other day. That was with moderate temperature and a short part of freeway. And this was still with winter tires, which usually lead to higher consumption.
The massive difference is not explained by the shorter distance, but by the slower speed. Hence by driving the shorter route, I could reduce the energy cost per daily commute from an average CHF 2.7 to CHF 1.7 but is this worth enlarging the commute from 2×30 to 2×40 minutes? Not really!
Oh and BTW, the daily commute by train would be CHF 25 and take on the order of 2×50 minutes.

Generating solar electricity at home

After I switched to an electric car, I started to care much more about where the energy we consume comes from. With petrol and diesel you don’t really have that option. We are in a comfortable situation that we have some small hydro electric dams nearby. Thus all the electricity we use at home and for driving around, comes from 100% renewable, local production. When you meet with other E.V. drivers, renewable energy production is always an interesting topic. Lots of these folks have their own solar panels on the roof. Solar is especially interesting as it has no moving parts, and can be employed by private people. It becomes more problematic however if you don’t own a house. We live in a rented apartment, thus we have no option to put our own solar panels on the roof. Not all is lost fortunately. Recently I learned about panels with an integrated micro inverter that can be plugged directly into a regular plug on your balcony. According to Swiss law, up to 600W can be installed by private individuals. They only have to notify their power provider.
So I ordered an ADE Geranium from Energiegenossenschaft that I could pay with Bitcoin. Last week it arrived, and I immediately installed it in our garden. It can feed up to 250W into the plug. I don’t expect to feed a lot of this into the grid. It is more to reduce the standby consumption by refrigerators and computers. 250W is peak anyway and not often reached. In the first week after installation, it only produced 3.5 kWh. So it will likely take 10 years for it to amortize. But it comes with a 25 year warranty.

Charging at a strangers house

We spent the last week in an alpine Chalet and had to leave the car in a public parking halfway down the mountain. Upon arrival, the battery was down to 20% SOC. I read that leaving it below 20% or above 80% for extended periods of time was not too healthy. So I asked at a house next to the parking, if I could plug in the car for a while. They seemed friendly and agreed immediately. I told the man that I would need about 40kWh, and asked how much the electricity costs. He said he had no clue and I would have to know.
When I came to pick up the car, I gave him about twice as much as the electricity would cost at the most expensive rate known to me, and about three times as much as I pay at home. That was when he started complaining. He said when he goes to the gas pump with his ICE car, he wouldn’t get a lot of gas for this price. And if he knew that I was going to pay so little, he wouldn’t let me charge. Same for me, if I knew he would be discontent, I would rather drive 20 minutes to the next Supercharger, get free electricity, and still be welcome.
I never paid so much for a charge as I gave him. Usually if the electricity is too expensive at a public charging station, I just drive on to find something reasonable. But I paid him more than I usually would, because I wanted it to be a good experience for him.
I read about mostly good experiences when asking strangers for a plug. But after this incident, I will think twice next time.
What were your experiences with charging at a stranger’s house?

Spending Bitcoin while charging the car

When I go some place new, I always check out what Bitcoin accepting venues there are. I usually try to prioritize shops that accept crypto currency.
When I drive some place far away, I have to charge the car on the way. No big deal, usually I can eat, drink or go to the toilet. All those activities, I prefer not to perform in the car while driving anyway. When I’m done, the battery is charged enough to continue the journey.
But how cool would it be to combine the two. If there was a restaurant that accepts BTC next to a supercharger, I would eat there for sure. Unfortunately finding this information manually is a hassle. That is how the idea was born to write a simple script to correlate charging stations and Bitcoin shops. I did it only quick and dirty. It could be improved a lot, but I’m not sure that is necessary.
You can visit a map with the correlated locations on ZeroNet: Bitcoin shops at car charging stations
If you want to have a look at the script that compiles the list or improve it, you can do so at: bitcoin_supercharger.py

Green Technology Tour

Charles and I are going to participate in the WAVE (world advanced vehicle expedition) along the Grand Tour of Switzerland. This years tour will take place from June 8th to 16th and is titled “Green Technology Tour”.
We enter the trophy as Team Bitcoin with a big BTC logo on the frunk.
The tour will have well publicized stops at approx 40 cities. I’m very excited to spread the word about decentralized payments, and that Bitcoin is so much more than speculation…

You can follow our team blog directly on ZeroNet:
zero://wavebtc.bit
or through a proxy:
http://zeronet.ulrichard.ch/wavebtc.bit
https://zero.acelewis.com/#wavebtc.bit
The proxy links may not work every time. The second one randomly redirects to different proxy servers, some of which can be temporarily down, or don’t allow adding new sites. If you get an error, just try again, or better yet install ZeroNet.
In that respect ZeroNet is very similar to Bitcoin itself. Both networks are incredibly reliable and resilient. Unfortunately that doesn’t apply to the connection to the old world: The exchanges for Bitcoin and the proxies for ZeroNet.

General info about the WAVE is at:
wavetrophy.com

Why I deactivated Tesla app access

The official Tesla App is unfortunately not available for Ubuntu Phone. And there is no indication that it will be on my next phone, the Librem5 from Purism. On the bright side, from the computer I can control my car using the VisibleTesla desktop app running inside a docker container. But the best part about remotely controlling the car is that the API is publicly documented. Bindings are available for most scripting languages. That allows me to control the car from my Ubuntu phone at the command line. It also allows me to run a cron job to pre heat the car before I drive to and from work. It also allows me to precisely track how much electricity I charge, and where. It also allowed us to open the doors directly from an ethereum smart contract at Hack4Climate. And it allowed me to implement a cool live tracking for our summer holiday road trip. The possibilities are endless.

All my scripts authenticate using a token that is said to expire after 90 days. I set up my scripts so that I can enter my password to get a new token. And then the new token is used from there. Usually I enter the password on a maximally secured system, and then copy the file containing the access token to the other systems. That is because I saw in the API documentation, that remote starting the car requires the password explicitly. So if a hacker gained root access to my server or my phone, he could open the doors, but not drive away with my car.

When I first discovered that the Tesla account is secured only with a password, I was bewildered. I mean, this account is essentially a virtual key to my car. Everything that secures something with a value above a few hundred bucks, has used two factor authentication for many years. Having been in the Bitcoin space for some time, cyber security is very important for me. I refuse to use software based 2FA, instead I insist on hardware solutions. I have used a USB dongle with a secure element to manage my GPG keys for a long time. I use FIDO U2FA wherever I can. Most of my crypto currency holdings are secured by multiple hardware wallets. I switched my bank, because the former used text messages as second factor. And now, I find out that the most expensive thing that I bought in my entire live, is secured with only one factor. Wow! That was shocker No 1! So I picked a very long and hard to guess password. I didn’t store it anywhere. I am very cautious on which devices I even type it. But still I was uneasy about it all along.

Last week some of my scripts started reporting errors. As expected, an access token was expired. But I failed to get a new one by entering the password. So I tried logging in on the Tesla website. What I got to see, was a message that my account was blocked due to too many invalid login attempts. There was a button to reset the password. The result of that reset request was an eMail in my inbox with a link to a web form, where I can enter a new password. Hey, but wait a second. That eMail was NOT encrypted! Even if the link is only valid for a few minutes, everybody who sees it could take over my Tesla account, and steal my car. Seriously? That was shocker No 2!!! If a hacker gained access to my eMail account, he could even delete the mail, and I had no idea what’s going on.

I have regarded unencrypted eMails as an insecure means of communication for many years. And I thought that was common sense. For increased security, I run my own mail server. But my ISP added all the dynamic IP addresses to a spam list, and wants me to pay for an expensive business account in order to have eMail work well. Hence I use an externally hosted eMail address for most of the time, also for my Tesla account. So I wanted to quickly verify the security of that mail account. And while I’m at it, change the password to a more secure one. But the first surprise came in the form of the customer login to the management system. It was http only. No way to enter the password without running the risk of it being eavesdropped on. Seriously? That was shocker No 3!!!

Sure, it’s easy to blame my eMail provider, or me for selecting it. In reality it used to be hosted with another company that was later acquired. That just highlights the fact, that it is outside of your control. Email is not secure, and should not be used to transmit sensitive information, unless it’s encrypted – Period! I read about hacked eMail accounts and account takeovers every week. Lots of websites require some security questions in order to unlock an account. That’s better than nothing, if there is not a lot at stake. But if an account controls anything of value, solid 2 factor authentication is a must. Even if the mail account offers FIDO U2FA, I wouldn’t trust it with my car. For example gmail offers U2FA. But guess what happens when you log in with a browser that has no support for it. Yes right, convenience gets priority over security.

Account Recovery Exploitation is a known problem. Let me quote a paragraph from an article by yubico: 5 Surprisingly Easy Ways Your Online Account Credentials Can Be Stolen

Due to the large scale of users for many services and the general desire to keep support costs low everywhere, account recovery flows can be much weaker than the primary authentication channel. For example, it’s common for companies deploying strong two-factor authentication (2FA) solutions as their primary method to leave SMS as a backup. Alternatively, companies may simply allow help desk personnel to reset credentials or set temporary bypass codes with just a phone call and little to no identity verification requirements.
Services implementing 2FA need to strengthen both the primary and the recovery login flow so that users aren’t compromised by the weaker path.

Unfortunately, both the primary and the recovery login flow of the Tesla account are incredibly weak. As much as I love the cool and convenient features from remotely controlling my car, I disabled app access in the settings screen of the car. I would like to re-enable it very much. But only once I can trust the security of it again.

I read many times how important security is for Tesla. And how fast they respond to fix vulnerabilities. But then I found numerous reports of people complaining about the very same problems from FOUR years ago: 1 2 3. Sure, security means different things to different people. I’m grateful to the engineers who make sure, I don’t get killed in the car. But I also don’t want my car to get stolen or broken into so easily. When discussing this topic on a forum, one guy stated he doesn’t want to carry a secure hardware device the size of a key, and that he doesn’t care if his car is stolen. He has insurance. I have insurance too, but still don’t want to go through that experience.

Now, if you read this far and have a Twitter account, may I ask you to visit https://www.dongleauth.info/#iot, and click the button next to Tesla?

The mother of all hackathons

I just returned from #hack4climate. Even if it was just my third hackathon, I can state with certainty that this one was unlike any other. None of the 100 hackers from 33  countries experienced anything remotely comparable before.

The topic of the event was to develop solutions how blockchain technology can help fighting climate change.

First let me explore how the event differentiated from other hackathons. The hacking session was 24 hours, but the whole event lasted four full days. There were pre-workshops around the world. 100 participants were selected and invited to Bonn. Travel expenses were covered. We stayed on a five star hotel ship. It was adjacent to the UN climate conference. We had balcony suites on the ship. The food was appropriate for a 5 star ship, complete with wine to every dinner. The days before and after the hacking session were filled with interesting talks, a guided city tour, interesting discussions and lots of networking. There were so many interesting people and so much to talk about. At the last day they wanted to make a photo of us on the boat in front of the UN building. Drones were forbidden in the security zone, so the photographer rented a crane to get the perfect shot.

I knew nobody from the event in advance. But I knew that out of the sub topics, I was most interested in “sustainable transportation”. At the team building session, I headed straight to the guy with the most interesting pitch that contained something about cars. Our team was formed soon after, and I had a good feeling from the start. Two were from Singapore who already knew each other. Two were from India one living in San Francisco and the other in China. And one was also from Switzerland, but we didn’t know each other before.

When the hack session started at Tuesday noon, we shaped our rough ideas into a project that we could realize in the short amount of time. Then everybody stated what he would like to do. It all seemed to fit together wonderfully. I wanted to implement the smart contract. I didn’t have much experience in that area, and was grateful that the others could help me and answer my questions. Rather than drawing large diagrams, we collaborated on the interfaces, and then worked towards these. We didn’t hit mayor roadblocks or problems, everything seemed to flow in place. Most of us agreed that we are not productive after 2AM and that is is better to get some hours of sleep. In the morning we went out to shoot a video of our product in action.  The guys from SBB (who was a sponsor of the event) were around us most of the time. They helped where they could, and were generally very interested and engaged. We had many great discussions with them.

Our project was about end to end transportation. On the mobile app, you select a destination, and it identifies legs to use different means of transportation. We focused on car sharing, but other options include trains, bikes or buses. Our smart contract abstracts a car that can be rented over the ethereum blockchain. The owner of the car registers it by creating an instance of the smart contract. A person who wants to rent it can do so by sending ether. The required amount is determined by the price per km the owner wants, times the number of km the renter wants. If he doesn’t use up the credit, the rest is reimbursed at the end of the trip. But if he drives too far, the cars performance is degraded by the smart contract. The car was represented by a RaspberryPi running an ethereum node and our backend running on nodejs. Initially opening the car was indicated by an LED attached to the RPI. But to make it more realistic, the RPI then called the Tesla API to open a real car. At the end of the trip the RPI collected information about the car such as odometer and battery level as well as firmware version, stored it on the IPFS and registered the IPFS address with the smart contract to form an unfalsifiable audit trail. Last but not least, one of our team members used data from moving cars and turned it into an appealing 3D animation that highlights the hot spots in a city.

We were thrilled all along, even more after all the positive reactions to our presentation. And hooray, we made it into the finalists! That meant, we could present our project at the COP. That’s the fair for NGO’s which is attached to the UN climate conference. The team that won the hackathon, did so deservedly. Their project was about incentivizing land owners not to cut their trees. They used blockchain and game theory for the monetary part. In addition they trained a neuronal network to predict areas which are endangered most of deforestation, and need special attention.

A first official video appeared here, and I’m sure others will follow on the official website.

Update Dec 16 2017

The official after movie of #hack4climate was released:
https://youtu.be/UOANny6i0QM

Road trip to Norway with the Tesla

Our last road trip was a while back. After we returned from South America, we planned that our next big trip with the Büssli would be to Scandinavia. But we figured that family holidays with small kids are better stationary at one camp ground. Now that the kids are old enough, we didn’t trust the Büssli enough for such a big trip. Reliability of the vehicle becomes more important the more people are traveling. Since we have now a very new (for our terms) vehicle, we figured it was time for our next road trip. Let’s drive to Norway with the Tesla!
Many people still think electric cars are not suited for long trips. That might be true for some, but a Tesla is up to everything.
First the important facts:
Duration: 15 days
Distance covered: 5’000 km
Electricity charged: 1’088 kWh
Waiting time for charges: ZERO
Cost for charges: approx CHF 40
Our route on a map

Transit

We knew that it would be a long trip from Switzerland to Norway and back. The kids need to be able to run around every day. So driving it in one go was out of the question. Also my wive is not comfortable enough to drive the new car in a foreign country yet, hence I had to drive it all by myself. She also didn’t want to drive during the night. So we had to expect some traffic jams, and split the distance roughly in half. Both ways we slept in the Hanover area. We chose not do drive all the way around trough Sweden, but take the fairy from Denmark to Norway. To make the route in Norway more like a one way, we took the fairy back from Bergen to Denmark. Spending the night on the boat, we were ready to drive trough Denmark in the early morning.

Charging

While on the road, we mostly charged at the Tesla Superchargers. The navigation system does a great job, planning the required charges. The Superchargers once again proved to be just great. If possible we also charged over the night. But we didn’t stay in the fancy hotels, that have destination chargers. Instead all we got on the camp grounds were Schuko outlets. Not only is the charging slow, but often the charge stopped in the middle of the night because a fuse blew. Iit was always enough to reach the next Supercharger. In Bergen the main parking provided 54 free type2 chargers with 30A one phase. The only two other charges were in the Stavanger area. We stayed at the Lysse Fjord for a few days, and the next supercharger would have been more than half an hour away. Stavanger is Norway’s offshore oil industry center. So it is not such a big surprise that there were less EV’s in that area. I ordered a free RFID tag from Fortum before the trip. They have a decent charging network in Norway. So I charged twice with Chademo.
We tried to charge while having our meals, when shopping, and when somebody needed to go to the toilet. When we came back, the car had always enough energy to continue the trip. We NEVER had to wait for it to charge. I think this is a big takeaway from our trip.

Environment

Obviously an E.V. has no emissions. But this is only fully true, if the electricity doesn’t come from a coal plant. We have a reasonably clean electricity mix in Switzerland. Mostly hydro power, some nuclear and a tiny rest. Tesla promised that on the Swiss Superchargers, they only use energy from renewable sources. I recently confirmed that the electricity we use and charge at home comes exclusively from hydro, mostly local.
Norway has a massive amount of hydro power plants, and considerable wind power. I would be surprised if they had any electricity at all from non renewable sources.
But Germany has a dirty energy mix in general. They burn lots of coal. In the past decades they made huge progress in efficiency and reducing pollution. But that can’t do away the CO2. I read an article from 2015 that Tesla Germany was in the process of migrating all the sources of the electricity for their Superchargers to renewable. So I assume that they should be complete by now. In fact I saw massive solar arrays adjacent to many Superchargers and wondered if they were related. I assume the same holds true for Denmark.
That leaves me with the 10kWh that I charged over night from a regular German power outlet, which probably contained some coal energy. This equates to 1% of the electricity of the entire holiday trip. Plus the fairy boats burned some form of oil. Their use per passenger is difficult for me to quantify.

climate neutral

A few days later by coincidence I found MyClimate where you can compensate the CO2 pollution of a variety of activities. That brought me to the idea, that I could make our holiday climate neutral. They have calculators for different types of emissions. Although not exactly the ones I was looking for. For the fairies I used the cruise ship calculator, and for the brown electricity the house heating calculator, that allowed me to specify German electricity and how much. The calculated sum was 0.966 metric tons of CO2. To compensate, I donated CHF 27 for climate protection projects. What really surprised me was how much pollution a cruise ship emits, even compared to a gasoline car.

Kragero

The first destination in Norway was Kragero. It has some nice islands in front that are part of a nature protection area. The flat that we booked over AirBnb had a nice view over the sea. We visited a small island that was connected with a bridge and hosted the remains of an old fortress.

Dalen

There is not a lot of Bitcoin activity in Norway. But on coinmap.org I found a camp ground. It is run by Dutch people. My wive was pleased by the clean toilets. As chance would have it, Dalen also has the most beautiful hotel in Norway. We didn’t stay there, but we had a drink in comfortable leather seats while listening to the piano in the big hall.

Farsund

After the shower facility of the cabin we booked didn’t meet my wives expectations, we drove on to Kristiansand. All the way we tried to find a place to spend the night. In the rural areas there were many signs for cabins. But we saw none of them when we got closer to the sea. We ended up in a camp site with a beautiful beach. The sanitary installations were far worse than what we dissed before. But it was too late to search something else. When we arrived a 9pm, I set up our tent. The night was too cold for my wife even though she was the only one with a sleeping bag for sub zero temperatures. So this was to be our only night in the tent. The next morning we went to the beach, but the sea was just too cold for us to swim.

LandaLand

The famous Lyssefjord is a very touristic area. Thousands of people walk up to the Preikestolen every day. We had a small room at the LandaLand for three nights. The first day we drove around the fjord trough the mountains and down the 27 steep curves. From there we took the fairy trough the fjord.
On the second day we hiked to the Preikestolen. We started early through the well prepared trail in light rain. There were lots of people, but not nearly as much as in the stories of other people.
The third day there was a nice event in LandaLand. The kids could shoot with bow and arrow, and cast some tin. Later we drove to Stavanger and visited the oil museum. It was very interesting. They seemed to be open to all the questions about the environment. But of course their angle is slightly different than ours, driving an E.V. I was mainly interested in the technical aspects of the drilling platforms and submarines and stuff. These parts were very informative. Finally we had a delicious dinner at the food festival.

Voss

Norwegians love outdoor sports, and Voss is most known for it. On the way there we saw some more beautiful fjords and waterfalls. Every camp ground and every hotel and every holiday flat in the vicinity of Voss seemed to be fully booked. After a long search, we found a family room in the youth hostel. I could finally make the first flight with my paraglider in Norway. Since all the cable cars were closed, I had to walk up. This marked the 20th country for me to paraglide. Numer 19 was Korea in 2009. Initially we planned to stay some days in Voss, but the weather was getting worse and the city center was not that great. Since we saw lots of fjords already we thought the Sognefjord couldn’t be that much different. So we decided to spend the last few days in Bergen.

Bergen

We were very lucky with the accommodation that we found on AirBnb. We spent two nights in a nicely prepared basement apartment hosted by a lovely retired lady.  Also the city was nice. In Bergen we saw way more electric cars than in the regions visited so far.

Payments

One strange thing was that the restaurant where we had lunch in Bergen didn’t have a toilet. So we went the the shopping mall. But the toilet had a card reader attached. It wouldn’t work with a regular Maestro card. And I had to try multiple times to figure out how to open the door with my Xapo Visa debit card. Even the toy cars where the kids can ride in the shopping mall are card operated. In Norway almost everything is payed by card. Some might call it progress, to me this is completely derailed.